*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--app-bg,#efe8da);font-family:var(--font-sans);color:var(--ink,#26201a);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility}::-webkit-scrollbar{width:9px;height:9px}::-webkit-scrollbar-thumb{background:#d6cbb6 padding-box padding-box;border:2px solid #0000;border-radius:9px}::-webkit-scrollbar-thumb:hover{background:#c4b79d padding-box padding-box}:root{--app-bg:#efe8da;--panel:#f5efe2;--card:#fcf8f0;--border-light:#e7ddcb;--border-medium:#e2d6c1;--ink:#26201a;--muted:#8a7a63;--muted-2:#9a8b73;--sage:#549c3b;--sage-hover:#4b8e34;--sage-shadow:#3e7a2a;--dark:#2e2a22;--dark-2:#3b3327}@keyframes nspin{to{transform:rotate(360deg)}}@keyframes nshim{0%{background-position:-360px 0}to{background-position:360px 0}}@keyframes nUp{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes nPop{0%{opacity:0;transform:scale(.96)}to{opacity:1;transform:scale(1)}}@keyframes nWave{0%,to{transform:scaleY(.28)}50%{transform:scaleY(1)}}@keyframes nBreath{0%,to{opacity:.85;transform:scale(1)}50%{opacity:1;transform:scale(1.06)}}@keyframes nPulse{0%,to{opacity:.9;transform:scale(1)}50%{opacity:1;transform:scale(1.08)}}@keyframes nRing{0%{opacity:.55;transform:scale(.7)}to{opacity:0;transform:scale(1.9)}}@media (max-width:860px){.auth-brand{display:none!important}}.folder-workspace{box-sizing:border-box;min-height:100%;padding:16px 26px 10px;animation:.2s nUp}.folder-workspace *{box-sizing:border-box}.study-tree-branch{border-left:1px solid #d5c8b0;flex-direction:column;gap:4px;margin:-1px 0 4px 21px;padding:4px 0 5px 13px;animation:.16s nUp;display:flex}.study-tree-loading{flex-direction:column;gap:7px;padding:7px 4px;display:flex}.study-tree-loading span,.folder-workspace-loading span{background:linear-gradient(90deg,#eee5d5 20%,#f8f3e9 50%,#eee5d5 80%) 0 0/360px 100%;animation:1.2s linear infinite nshim;display:block}.study-tree-loading span{border-radius:9px;height:32px}.study-tree-loading span:last-child{width:76%}.folder-workspace-loading{box-sizing:border-box;flex-direction:column;gap:18px;height:100%;padding:24px 28px;animation:.18s nUp;display:flex}.folder-loading-title{border-radius:11px;width:38%;height:42px}.folder-loading-tabs{border-radius:10px;width:42%;height:38px}.folder-loading-card{border-radius:17px;width:100%;height:360px}.folder-workspace-header{justify-content:space-between;align-items:flex-start;gap:18px;margin-bottom:8px;display:flex}.folder-workspace-header-actions{flex:1;justify-content:flex-end;align-items:flex-start;gap:8px;min-width:0;max-width:620px;display:flex}.folder-workspace-tabs{border-bottom:1px solid var(--border-light);gap:8px;margin-bottom:12px;padding-bottom:12px;display:flex}.folder-tab-count{min-width:20px;height:20px;font-family:var(--font-mono);background:#ffffffb8;border-radius:999px;justify-content:center;align-items:center;padding:0 6px;font-size:10px;display:inline-flex}.exam-date-control{min-width:0}.adaptive-review-rating-button,.adaptive-review-quiz-options button,.adaptive-review-flashcard,.exam-date-chip{transition:transform .15s,box-shadow .15s,border-color .15s}.adaptive-review-rating-button:hover:not(:disabled),.adaptive-review-quiz-options button:hover:not(:disabled),.exam-date-chip:hover{transform:translateY(-1px);box-shadow:0 3px 8px #261c1212}.folder-workspace button:focus-visible,.folder-workspace input:focus-visible,.folder-workspace select:focus-visible,.folder-workspace textarea:focus-visible,.adaptive-review button:focus-visible,.adaptive-review-rating-button:focus-visible,.adaptive-review-quiz-options button:focus-visible,.adaptive-review-flashcard:focus-visible,.exam-date-control button:focus-visible,.exam-date-control input:focus-visible,.folder-workspace-tabs button:focus-visible{outline-offset:2px;outline:3px solid #3f5a8a47}.folder-empty-state{text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:13px;min-height:280px;padding:34px;display:flex}.final-exam-builder{flex-direction:column;gap:12px;display:flex}.folder-tool-intro{justify-content:space-between;align-items:flex-end;gap:24px;display:flex}.folder-tool-actions{flex-direction:column;flex:none;gap:6px;min-width:219px;display:flex}.folder-tool-metrics{flex-wrap:wrap;flex:none;justify-content:flex-end;gap:6px;display:flex}.folder-tool-metrics span{color:#6e7890;min-width:69px;font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.07em;background:#f3f5f9;border:1px solid #d9dfeb;border-radius:11px;flex-direction:column;align-items:center;padding:9px 11px;font-size:9.5px;display:flex}.folder-tool-metrics strong{color:#3f5a8a;letter-spacing:0;font-size:17px}.latest-exam-card{text-align:left;cursor:pointer;color:#549c3b;background:#f1f7ed;border:1px solid #d8e6ce;border-radius:10px;justify-content:space-between;align-items:center;gap:10px;width:100%;padding:7px 10px;display:flex}.latest-exam-detail{display:none!important}.final-exam-settings-grid{grid-template-columns:minmax(180px,.65fr) minmax(420px,1.35fr);align-items:start;gap:12px;display:grid}.folder-setting-card{border:1px solid var(--border-light);background:var(--card);border-radius:16px;min-width:0;padding:18px;box-shadow:0 1px 2px #261c1209}.folder-parameters-card{grid-template-columns:1fr 1fr;gap:12px 14px;display:grid}.folder-parameter-wide{grid-column:1/-1}.folder-style-choices{grid-template-columns:repeat(3,1fr);gap:7px;display:grid}.folder-style-choices button{min-width:0;align-items:flex-start!important;padding:9px 10px!important}.folder-note-select-list{flex-direction:column;gap:7px;max-height:425px;padding-right:2px;display:flex;overflow-y:auto}.folder-note-select{background:#fbf6ec;border:1px solid #e7ddcb;border-radius:11px;align-items:center;gap:10px;padding:10px 11px;display:flex}.folder-note-select input{accent-color:#3f5a8a}.final-exam-warning,.final-exam-error,.final-exam-progress{border-radius:12px;align-items:flex-start;gap:10px;padding:13px 15px;font-size:13px;line-height:1.5;display:flex}.final-exam-warning{color:#725b20;background:#fff8e5;border:1px solid #e8d7a7}.final-exam-error{color:#9c4223;background:#fdf0e9;border:1px solid #eed8cb}.final-exam-progress{color:#3f5a8a;background:#f3f5f9;border:1px solid #d9dfeb;align-items:center}.final-exam-footer{justify-content:space-between;align-items:center;gap:22px;padding-top:3px;display:flex}.folder-session-toolbar{justify-content:space-between;align-items:center;gap:18px;display:flex}.folder-flashcard{cursor:pointer;text-align:center;background:#fcf8f0;border:1px solid #e2d6c1;border-radius:20px;width:100%;min-height:330px;padding:40px 32px;box-shadow:0 10px 26px #261c1212}.folder-session-nav,.final-exam-nav{justify-content:space-between;align-items:center;gap:14px;margin-top:18px;display:flex}.final-exam-player{max-width:760px;margin:0 auto}.final-exam-topbar{justify-content:space-between;align-items:center;gap:16px;margin-bottom:15px;display:flex}.final-exam-result{text-align:center;background:#f1f7ed;border:1px solid #d8e6ce;border-radius:15px;margin-bottom:16px;padding:18px}.final-exam-question{border:1px solid var(--border-light);background:var(--card);border-radius:18px;min-height:360px;padding:24px;box-shadow:0 2px 7px #261c120d}@media (max-width:1000px){.final-exam-settings-grid{grid-template-columns:1fr}}@media (max-width:719px){.nav-desktop{display:none!important}.nav-mobile{display:block!important}.app-main{padding-bottom:64px;margin-left:0!important}.daily-grid{grid-template-columns:1fr!important;padding-left:20px!important;padding-right:20px!important;overflow-y:auto!important}.studio-root{flex-direction:column!important}.studio-rail{border-bottom:1px solid #e4dac7;max-height:190px;border-right:none!important;flex:none!important;width:100%!important;height:auto!important;padding:14px 16px 12px!important}.study-picker{height:100%!important;display:block!important;overflow-y:auto!important}.study-tree{border-bottom:1px solid #e4dac7;max-height:270px;border-right:none!important;width:100%!important;height:auto!important;padding:13px 14px 12px!important}.study-preview{min-height:560px;width:100%!important;height:auto!important;display:block!important;overflow:visible!important}.folder-workspace{padding:20px 16px 34px}.folder-workspace-header{flex-direction:column;align-items:stretch}.folder-workspace-header-actions{flex-wrap:wrap;justify-content:space-between;width:100%;max-width:none}.folder-workspace-header-actions .exam-date-form{flex-basis:100%;order:2;align-items:stretch!important}.folder-workspace-header h1{font-size:25px!important}.folder-workspace-tabs{z-index:2;background:#faf4e9;margin-left:-16px;margin-right:-16px;padding:9px 16px 14px;position:sticky;top:0;overflow-x:auto}.folder-workspace-tabs button{flex:1;justify-content:center;min-width:max-content}.folder-tool-intro{flex-direction:column;align-items:flex-start;gap:14px}.folder-tool-actions{width:100%}.folder-tool-metrics{justify-content:stretch;width:100%}.folder-tool-metrics span{flex:1;min-width:0}.latest-exam-card{padding:10px 12px}.latest-exam-detail{display:block!important}.final-exam-settings-grid{grid-template-columns:1fr}.folder-setting-card{padding:15px}.folder-parameters-card{grid-template-columns:1fr}.folder-parameter-wide{grid-column:auto}.folder-style-choices{grid-template-columns:1fr}.folder-note-select-list{max-height:300px}.final-exam-footer{flex-direction:column;align-items:stretch}.final-exam-footer button{justify-content:center;width:100%}.folder-session-toolbar{flex-direction:column;align-items:flex-start}.folder-flashcard{min-height:280px;padding:30px 20px}.folder-flashcard strong{font-size:22px!important}.adaptive-review-hero{flex-direction:column;align-items:stretch!important}.adaptive-review-hero>button{width:100%}.adaptive-review-metrics,.adaptive-review-rating-bar{grid-template-columns:repeat(2,minmax(0,1fr))!important}.adaptive-review-card{min-height:310px!important;padding:18px!important}.adaptive-review-toolbar{grid-template-columns:auto minmax(0,1fr) auto!important}.adaptive-review-ratings{bottom:calc(64px + env(safe-area-inset-bottom,0px));z-index:3;background:#faf4e9;border-top:1px solid #e7ddcb;margin:0 -8px;padding:10px 8px 0;position:sticky;box-shadow:0 -8px 18px #261c120d}.final-exam-question{min-height:330px;padding:18px}.final-exam-topbar{flex-wrap:wrap}}:focus{outline:none}button,input,textarea,select{font-family:inherit}@keyframes nMarquee{0%{transform:translate(0)}to{transform:translate(-50%)}}@keyframes nDraw{to{stroke-dashoffset:0}}@keyframes nBlob{0%,to{transform:translate(0)scale(1)}50%{transform:translate(18px,-22px)scale(1.07)}}@keyframes nFloat{0%,to{transform:translateY(0)}50%{transform:translateY(-7px)}}.lp-hero-in{opacity:0;animation:.7s cubic-bezier(.22,.9,.32,1) forwards nUp}.lp-reveal{opacity:0;transition:opacity .7s cubic-bezier(.22,.9,.32,1),transform .7s cubic-bezier(.22,.9,.32,1);transform:translateY(24px)}.lp-reveal.lp-in{opacity:1;transform:none}.lp-tabin{animation:.45s cubic-bezier(.22,.9,.32,1) nUp}.lp-marquee{width:max-content;animation:38s linear infinite nMarquee;display:flex}.lp-marquee:hover{animation-play-state:paused}.lp-lift{transition:transform .25s,box-shadow .25s,border-color .25s}.lp-lift:hover{transform:translateY(-3px);box-shadow:0 12px 26px #261c121a}.lp-btn{transition:transform .15s,box-shadow .15s,background .15s,filter .15s}.lp-btn:hover{box-shadow:0 3px 0 var(--sage-shadow);filter:brightness(1.04);transform:translateY(-1px)}.lp-btn:active{box-shadow:0 0 0 var(--sage-shadow);transform:translateY(2px)}.lp-chip{cursor:pointer;transition:transform .18s,background .18s,border-color .18s,box-shadow .18s}.lp-chip:hover{transform:translateY(-2px)}.lp-flip{perspective:900px;cursor:pointer}.lp-flip-inner{width:100%;height:100%;transform-style:preserve-3d;transition:transform .55s cubic-bezier(.3,.8,.3,1);position:relative}.lp-flip.lp-flipped .lp-flip-inner{transform:rotateY(180deg)}.lp-face{backface-visibility:hidden;position:absolute;inset:0}.lp-face-back{transform:rotateY(180deg)}details.lp-faq summary{cursor:pointer;list-style:none}details.lp-faq summary::-webkit-details-marker{display:none}.lp-faq-chev{transition:transform .25s}details[open] .lp-faq-chev{transform:rotate(90deg)}.lp-hero-grid{grid-template-columns:1.02fr .98fr;align-items:center;gap:52px;display:grid}.lp-hero-grid>*{min-width:0}.lp-bento{grid-template-columns:repeat(3,1fr);gap:16px;display:grid}.lp-bento-wide{grid-column:span 2}@media (max-width:960px){.lp-hero-grid{grid-template-columns:1fr;gap:40px}.lp-bento{grid-template-columns:1fr}.lp-bento-wide{grid-column:auto}}.legal-body{color:#4a3f30;font-size:15px;line-height:1.7}.legal-body h2{font-family:var(--font-serif);color:var(--ink);margin:40px 0 12px;font-size:22px;font-weight:600}.legal-body h2:first-child{margin-top:0}.legal-body h3{font-family:var(--font-serif);color:var(--ink);margin:24px 0 8px;font-size:17px;font-weight:600}.legal-body p{margin:0 0 14px}.legal-body ul,.legal-body ol{margin:0 0 14px;padding-left:22px}.legal-body li{margin:0 0 8px}.legal-body a{color:var(--sage-hover);text-decoration:underline}.legal-body strong{color:var(--ink)}.legal-body table{border-collapse:collapse;width:100%;margin:0 0 18px;font-size:13.5px}.legal-body th,.legal-body td{text-align:left;border:1px solid var(--border-light);vertical-align:top;padding:9px 12px}.legal-body th{background:var(--panel);font-weight:700}.legal-body .legal-toc{background:var(--card);border:1px solid var(--border-light);border-radius:14px;margin:0 0 32px;padding:18px 22px}.legal-body .legal-toc ol{margin:0;padding-left:20px}.legal-body .legal-note{background:var(--panel);border:1px solid var(--border-medium);color:var(--muted);border-radius:12px;margin:0 0 14px;padding:12px 16px;font-size:13.5px}.legal-body blockquote{margin:0 0 14px;padding:2px 0}@media (prefers-reduced-motion:reduce){.lp-hero-in{opacity:1;animation:none}.lp-marquee{animation:none}.lp-reveal{opacity:1;transition:none;transform:none}.lp-tabin{animation:none}.lp-blob{animation:none!important}.lp-flip-inner{transition:none}}